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POST
/
v1
/
evm
/
yields
curl -X POST "https://api.blockdb.io/v1/evm/yields" \
  -H "Authorization: Bearer $BLOCKDB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "chain_id": 1,
  "target_period_days": 30,
  "pool_uids": [
    "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
  ],
  "from_timestamp": "2025-12-01T00:00:00Z",
  "to_timestamp": "2025-12-20T00:00:00Z",
  "require_full_period": true,
  "limit": 250
}'

{
  "meta": {
    "chain_id": 1,
    "request_window": {
      "from_timestamp": "2025-12-01T00:00:00Z",
      "to_timestamp": "2025-12-20T00:00:00Z"
    },
    "filters": {
      "pool_uids": [
        "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
      ],
      "target_period_days": 30,
      "require_full_period": true,
      "limit": 250,
      "cursor": null
    }
  },
  "data": [
    {
      "chain_id": 1,
      "id": 987654321,
      "pool_uid": "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000",
      "exchange_id": 1,
      "type_id": 201,
      "block_number": 19001234,
      "block_time": "2025-12-20T12:34:56Z",
      "tx_index": 7,
      "log_index": 12,
      "target_period_days": 30,
      "observed_period_days": 30,
      "is_full_period": true,
      "is_extrapolated": false,
      "extrapolation_factor": "1.000000",
      "window_start_time": "2025-11-20T12:34:56Z",
      "window_end_time": "2025-12-20T12:34:56Z",
      "tokens": [
        "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
        "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
      ],
      "current_reserves": [
        "1250.000000000000000000",
        "3950000.000000000000000000"
      ],
      "volume_observed": [
        "12000.000000000000000000",
        "0.000000000000000000"
      ],
      "volume_predicted": [
        "12000.000000000000000000",
        "0.000000000000000000"
      ],
      "user_fees_observed": [
        "36.000000000000000000",
        "0.000000000000000000"
      ],
      "user_fees_predicted": [
        "36.000000000000000000",
        "0.000000000000000000"
      ],
      "roi_predicted": [
        "0.028800000000000000",
        "0.000000000000000000"
      ],
      "_tracing_id": "0411c0ffee000000000000000000000000000000000000000000000000000001",
      "_parent_tracing_ids": [
        "0303c0ffee000000000000000000000000000000000000000000000000000001",
        "0301c0ffee000000000000000000000000000000000000000000000000000001"
      ],
      "_created_at": "2025-12-20T12:35:01Z",
      "_updated_at": "2025-12-20T12:35:01Z"
    }
  ],
  "cursor": null,
  "count": 1
}

​
Description

Retrieves pool yield/ROI predictions across fixed horizons (1D, 3D, 7D, 14D, 30D, 90D, 365D). Each record is anchored to an as-of block/log position and includes aligned arrays for pool tokens, reserves, volumes, fees, and ROI predictions. Use this endpoint to:
  • Rank pools by predicted fee yield over a horizon
  • Build pool allocation screens (APR/ROI signals) with provenance
  • Validate or backtest fee-driven yield models using swap-fees and reserves

​
Parameters

​
chain_id
number
required
Target EVM network. See the Chain enumeration for supported values.

​
Range Filters (mutually exclusive)

​
from_block
number
Starting block number (inclusive) for the query. Use with to_block.
​
to_block
number
Ending block number (inclusive) for the query. Use with from_block.
​
from_timestamp
string
Starting timestamp (ISO-8601). If it falls between blocks, the next block after this timestamp is used. Use with to_timestamp.
​
to_timestamp
string
Ending timestamp (ISO-8601). If it falls between blocks, the last block before this timestamp is used. Use with from_timestamp.
Validation rule:
You must provide either a block range, a time range, or at least one direct selector.
Providing more than one option results in HTTP 400.
Providing none results in HTTP 400.

​
Pool Selectors

​
exchange_ids
number[]
Filter pools by exchange IDs. See the DigitalExchange enumeration for supported values.
​
pool_uids
string[]
Filter by BlockDB pool identifiers (uid from /evm/pools).
​
pool_addresses
string[]
Filter by pool contract addresses (hex string, 20 bytes, no 0x prefix).
​
pool_ids
string[]
Filter by protocol-specific pool identifiers (e.g., Uniswap V4 pool_id).
​
pool_type_ids
number[]
Filter by AMM archetype. See the PoolType enumeration for supported values.

​
Horizon & Token Filters

​
target_period_days
number
Target horizon in days. Allowed values: 1, 3, 7, 14, 30, 90, 365.
​
token_addresses
string[]
Restrict to pools that contain at least one of these tokens (hex string, 20 bytes, no 0x prefix).
​
require_full_period
boolean
default:"false"
If true, returns only rows where observed_period_days == target_period_days (no extrapolation).

​
Pagination Controls

​
limit
number
default:"250"
Recommended default 250; maximum 1000 to stay under ~10 MB responses.
​
cursor
string
Pagination cursor from a prior call.

​
Response Fields

​
Meta

​
meta
object
Echo of request metadata applied to the response.
​
meta.chain_id
number
EVM chain ID echoed from the request.
​
meta.request_window
object
Block/timestamp bounds derived from the request.
​
meta.filters
object
Filters echoed from the request (selectors, horizon filters, pagination state, etc.).

​
Data

​
data
object[]
Array of yield/ROI prediction records matching the request.
​
data.chain_id
number
Chain ID for the yield record.
​
data.id
number
Stable identifier for the yield record.
​
data.pool_uid
string
BlockDB pool identifier (uid from /evm/pools).
​
data.exchange_id
number
Exchange/DEX identifier.
​
data.type_id
number
Pool type identifier.
​
data.block_number
number
Block height of the as-of snapshot anchor.
​
data.block_time
string
UTC timestamp of the as-of snapshot anchor.
​
data.tx_index
number
Zero-based transaction index within the block.
​
data.log_index
number
Zero-based log index within the transaction.
​
data.target_period_days
number
Target horizon in days (1, 3, 7, 14, 30, 90, 365).
​
data.observed_period_days
number
Observed history actually used to produce the prediction.
​
data.is_full_period
boolean
true when observed_period_days == target_period_days.
​
data.is_extrapolated
boolean
true when the row is scaled from shorter history.
​
data.extrapolation_factor
string
Scaling factor applied when extrapolating. Returned as a string to preserve precision.
​
data.window_start_time
string
Start time of the observed window used for aggregation.
​
data.window_end_time
string
End time of the observed window used for aggregation.
​
data.tokens
string[]
Pool token addresses. All array-valued metrics are aligned to this order.
​
data.current_reserves
string[]
Current reserves per token (decimals-adjusted). Returned as strings to preserve precision.
​
data.volume_observed
string[]
Observed traded volume per token in the observed window.
​
data.volume_predicted
string[]
Predicted traded volume per token for the target horizon.
​
data.user_fees_observed
string[]
Observed user/LP fee amounts per token in the observed window.
​
data.user_fees_predicted
string[]
Predicted user/LP fee amounts per token for the target horizon.
​
data.roi_predicted
string[]
Predicted ROI fractions per token for the target horizon.
​
data._tracing_id
string
Row-level lineage hash (hex string, no 0x prefix).
​
data._parent_tracing_ids
string[]
Lineage references of immediate parents.
​
data._created_at
string
Record creation timestamp (ISO-8601).
​
data._updated_at
string
Last update timestamp (ISO-8601).

​
Envelope Fields

​
cursor
string | null
Cursor token for pagination.
​
count
number
Number of records returned in data.
curl -X POST "https://api.blockdb.io/v1/evm/yields" \
  -H "Authorization: Bearer $BLOCKDB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "chain_id": 1,
  "target_period_days": 30,
  "pool_uids": [
    "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
  ],
  "from_timestamp": "2025-12-01T00:00:00Z",
  "to_timestamp": "2025-12-20T00:00:00Z",
  "require_full_period": true,
  "limit": 250
}'

{
  "meta": {
    "chain_id": 1,
    "request_window": {
      "from_timestamp": "2025-12-01T00:00:00Z",
      "to_timestamp": "2025-12-20T00:00:00Z"
    },
    "filters": {
      "pool_uids": [
        "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000"
      ],
      "target_period_days": 30,
      "require_full_period": true,
      "limit": 250,
      "cursor": null
    }
  },
  "data": [
    {
      "chain_id": 1,
      "id": 987654321,
      "pool_uid": "88e6a0c2ddd26feeb64f039a2c41296fcb3f5640000000000000000000000000",
      "exchange_id": 1,
      "type_id": 201,
      "block_number": 19001234,
      "block_time": "2025-12-20T12:34:56Z",
      "tx_index": 7,
      "log_index": 12,
      "target_period_days": 30,
      "observed_period_days": 30,
      "is_full_period": true,
      "is_extrapolated": false,
      "extrapolation_factor": "1.000000",
      "window_start_time": "2025-11-20T12:34:56Z",
      "window_end_time": "2025-12-20T12:34:56Z",
      "tokens": [
        "c02aaa39b223fe8d0a0e5c4f27ead9083c756cc2",
        "a0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
      ],
      "current_reserves": [
        "1250.000000000000000000",
        "3950000.000000000000000000"
      ],
      "volume_observed": [
        "12000.000000000000000000",
        "0.000000000000000000"
      ],
      "volume_predicted": [
        "12000.000000000000000000",
        "0.000000000000000000"
      ],
      "user_fees_observed": [
        "36.000000000000000000",
        "0.000000000000000000"
      ],
      "user_fees_predicted": [
        "36.000000000000000000",
        "0.000000000000000000"
      ],
      "roi_predicted": [
        "0.028800000000000000",
        "0.000000000000000000"
      ],
      "_tracing_id": "0411c0ffee000000000000000000000000000000000000000000000000000001",
      "_parent_tracing_ids": [
        "0303c0ffee000000000000000000000000000000000000000000000000000001",
        "0301c0ffee000000000000000000000000000000000000000000000000000001"
      ],
      "_created_at": "2025-12-20T12:35:01Z",
      "_updated_at": "2025-12-20T12:35:01Z"
    }
  ],
  "cursor": null,
  "count": 1
}